INFORMATION (C-07.Pdf)
CAPABILITIES BOILER CIRCULATION STUDIES Boiler Circulation (Chemical Recovery, Biomass, and RDF/MSW Boilers) Circulation of water through boiler tubes is necessary to prevent tube overheating and potential failure. The need to conduct a circulation study on a boiler is typically dictated because of any one, or combination of, the following reasons: • To establish the maximum steaming rate at which circulation remains adequate. • To determine pressure part modifications needed to support a significant increase in fuel burning rate. • To evaluate the effect of changing boiler operating conditions (such as type of fuel or operating pressure) on circulation. • To evaluate the effect of changing heating surfaces on circulation. • To uncover factors causing repeat pressure part failures and/or tube overheating. • To investigate the cause of excessive scale depositions inside tubing. A valuable technique used by JANSEN during its analyses of circulation conditions is the application of Ultrasonic Flow Monitoring (UFM). Selected References (see next page) C-07 2/17 Selected References Boiler Circulation Studies Alabama River Cellulose - Perdue Hill, AL KapStone Paper - Roanoke Rapids, NC Alberta-Pacific Forest Industries, Inc. - Boyle, AB Kimberly-Clark Corporation - Coosa Pines, AL APRIL Group - Rizhao, China (2 units) Kimberly-Clark Forest Products Inc. - Terrace Bay, ON AssiDomän Sepap - Stetí, Czech Republic Kimberly-Clark Nova Scotia Inc. - New Glasgow, NS Australian Paper - Morwell, Australia MacMillan Bloedel Limited - Port Alberni, BC AV Nackawic - Nackawic, NB Mead Corporation - Chillicothe, OH Bahia Specialty Cellulose S.A. - Camaçari, BA, Brazil Mead Corporation - Escanaba, MI (2 units) Blue Ridge Paper Company - Canton, NC Mead Corporation - Kingsport, TN Boise Cascade Corp. - DeRidder, LA MeadWestvaco - Phenix City, AL (2 units) Boise Cascade Corp.
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